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This chapter contains information about MySQL
Cluster is a high-availability, high-redundancy version
of MySQL adapted for the distributed computing environment. It uses
NDBCLUSTER storage engine to enable
running several computers with MySQL servers and other software in a
cluster. This storage engine is available in MySQL 5.0
binary releases and in RPMs compatible with most modern Linux
Beginning with MySQL 5.0.8, MySQL Cluster changes for MySQL 5.0 Server releases can be found in the MySQL 5.0 Server Release Notes. For release notes for older releases of MySQL Cluster (before 5.0.8), see MySQL Cluster 5.0 Release Notes.
Supported Platforms. MySQL Cluster is currently available and supported on a number of platforms. For exact levels of support available for on specific combinations of operating system versions, operating system distributions, and hardware platforms, please refer to http://www.mysql.com/support/supportedplatforms/cluster.html.
Compatibility with standard MySQL.
While many standard MySQL schemas and applications can work using
MySQL Cluster, it is also true that unmodified applications and
database schemas may be slightly incompatible or have suboptimal
performance when run using MySQL Cluster (see
Section 17.1.5, “Known Limitations of MySQL Cluster”). Most of these issues
can be overcome, but this also means that you are very unlikely to
be able to switch an existing application datastore—that
currently uses, for example,
InnoDB—to use the
NDB storage engine without allowing
for the possibility of changes in schemas, queries, and
Beginning with MySQL Cluster NDB 7.1, MySQL Cluster is available for production use on Microsoft Windows. MySQL Cluster is not available for Microsoft Windows in MySQL 5.0. For more information, see MySQL Cluster NDB 6.1 - 7.1.
This chapter represents a work in progress, and its contents are subject to revision as MySQL Cluster continues to evolve. Additional information regarding MySQL Cluster can be found on the MySQL Web site at http://www.mysql.com/products/cluster/.
Additional Resources. More information about MySQL Cluster can be found in the following places:
For answers to some commonly asked questions about MySQL Cluster, see Section B.10, “MySQL 5.0 FAQ: MySQL Cluster”.
The MySQL Cluster mailing list: http://lists.mysql.com/cluster.
The MySQL Cluster Forum: http://forums.mysql.com/list.php?25.
Many MySQL Cluster users and developers blog about their experiences with MySQL Cluster, and make feeds of these available through PlanetMySQL.
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